12z/7-42=21-3z/7

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Solution for 12z/7-42=21-3z/7 equation: 



12z/7-42=21-3z/7

We move all terms to the left:

12z/7-42-(21-3z/7)=0

We add all the numbers together, and all the variables

12z/7-(-3z/7+21)-42=0

We get rid of parentheses

12z/7+3z/7-21-42=0

We multiply all the terms by the denominator


12z+3z-21*7-42*7=0

We add all the numbers together, and all the variables

15z-441=0

We move all terms containing z to the left, all other terms to the right

15z=441

z=441/15

z=29+2/5

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